KR20170088156A - Non-platinum catalyst for fuel cell and method of preparing the same - Google Patents

Abstract

The present invention relates to a non-platinum catalyst for a fuel cell and a method of manufacturing the same. More particularly, the present invention relates to a non-platinum catalyst for a fuel cell, which comprises a reduced graphite oxide and a non- Platinum catalysts can be produced in large quantities by a simple process.

Description

TECHNICAL FIELD [0001] The present invention relates to a non-platinum catalyst for fuel cells and a method for preparing the same.

The present invention relates to a non-platinum catalyst for fuel cells applicable to an oxygen reduction electrode of a fuel cell and a method of manufacturing the same.

The reaction rate must be effectively increased in order to facilitate the oxygen reduction reaction (ORR) in which the rate determining reaction of the polymer electrolyte membrane fuel cell (PEMFC) system is determined.

For the above reasons, platinum (Pt) has been inevitably used in the conventional fuel cell system. However, the platinum catalyst exhibits excellent reactivity, but it is very expensive and can be a bottleneck for the fuel cell.

In recent years, attempts have been made to reduce the amount of platinum in various directions such as platinum alloy, strengthening the active surface area of platinum particles, and core-shell structure, but ultimately, the ideal direction is the use of non-whiteness catalyst material. In particular, non-whitening catalysts based on transition metals have been intensively researched for over 10 years.

In particular, researches have recently been conducted to apply carbon-based materials having excellent electrical conductivity and chemical durability, such as graphene and carbon nanotubes (CNT), as non-whitening catalysts by doping transition metals. However, most of them show electrochemical catalytic activity of 2-electron reduction reaction. This is because the substantial active area of the electrode catalyst is limited due to the irreversible interlayer stacking phenomenon due to the strong interfacial attraction between the graphenes generated in the electrode catalyst production process. In addition, CNTs can be grown through a chemical vapor deposition (CVD) process, which typically provides a carbon source gas on a substrate having a metal catalyst dispersed therein and heat treatment at a high temperature. However, such a method of growing CNTs by the CVD process can complicate the process and increase the manufacturing cost.

Further, in the case of a long-term operating environment of a fuel cell for an automobile, problems such as thinning of the catalyst layer and agglomeration of the catalyst are caused by the stability problem of progressing electrochemical oxidation / corrosion of the carbon carrier, It is becoming one of the main causes of problems. One way to improve this is to focus on the synthesis of materials to make carbon materials more resistant to corrosion and oxidation. Recently, materials such as graphitized carbon nanostructures, such as CNT and graphene, which show a relatively slow deterioration relative to electrochemical corrosion as compared to carbon black have been researched and developed come.

However, such a graphitized carbon nanostructure has a limited specific surface area and thus has a limitation in increasing the catalytic activity.

Korean Patent No. 10-1337989 Korean Patent Publication No. 10-2007-0073396 Korean Patent No. 10-1436500

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a platinum catalyst for a fuel cell having a structure having improved stability and electrical conductivity and improved specific surface area as compared with the conventional carbon- .

It is another object of the present invention to provide a method for producing a platinum catalyst for fuel cells, which can be synthesized inexpensively in a large amount by a simplified process, according to various embodiments of the present invention.

According to an aspect of the present invention, there is provided a non-platinum catalyst for a fuel cell comprising a carbon-based support doped with a transition metal and nitrogen, the carbon-based support comprising reduced graphite oxide (rGO); And carbon nanotubes (CNTs), wherein the reduced graphite oxide (rGO) is a layered structure in which a plurality of reduced graphene oxide (rGNO) And the CNT is formed by growing in a direction perpendicular to the surface of the reduced graphene oxide (rGNO).

Another aspect of the present invention relates to a redox electrode for a fuel cell comprising a non-platinum catalyst according to various embodiments of the present invention.

Another aspect of the present invention relates to a fuel cell comprising a non-platinum catalyst according to various embodiments of the present invention.

Another aspect of the invention is an apparatus comprising a non-platinum catalyst according to various embodiments of the present invention, wherein the apparatus is selected from the group consisting of a vehicle, a domestic fuel cell and a portable fuel cell.

Another aspect of the present invention is a catalyst composition comprising (A) a reduced graphite oxide; Transition metal precursors; Nitrogen-containing organic compounds; And a solvent to prepare a mixed solution; (B) irradiating the mixed solution with a microwave; And (C) heat treating the catalyst in an inert atmosphere.

The non-platinum catalyst for fuel cells according to the present invention has a high specific surface area due to the morphological aspects of the three-dimensional carbon nanostructure formed by the reduced graphite oxide and the carbon nanotubes, so that the catalyst activity can be improved.

In addition, since a three-dimensional carbon nanostructure in which carbon nanotubes are grown on the reduced graphite oxide by a simple process through microwave irradiation can be easily produced, and the cost can be reduced and a large amount can be obtained, It is possible to replace the expensive platinum catalyst used as the electrode catalyst of the battery and has a favorable effect in terms of cost competitiveness.

1 is a schematic view showing a method for producing a platinum catalyst for a fuel cell according to the present invention.
2 is a SEM (Scanning Electron Microscope) photograph of the catalyst prepared in Example 1 and Comparative Examples 1 and 2, respectively.
3 is a TEM (Transmission Electron Microscope) photograph of the catalysts prepared in Example 1 and Comparative Examples 1 and 2, respectively.
4 is a graph showing average diameters of carbon nanotubes included in the catalyst prepared in Example 1. FIG.
5 is a graph showing X-ray diffraction (XRD) analysis results showing the phase-crystallization of the catalyst prepared in Example 1. Fig.
6 is a graph showing the rotating disk current density versus ORR characteristics of the catalyst prepared in Example 1, Comparative Examples 1 and 2. FIG.
7 is a time versus current curve graph of the catalyst prepared in Example 1 and the commercial platinum catalyst using the chronoamperometry.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

One aspect of the present invention relates to a non-platinum catalyst for a fuel cell doped with a transition metal and nitrogen in a carbon-based carrier, wherein the carbon-based carrier comprises a reduced graphite oxide (rGO); And carbon nanotubes (CNTs), wherein the reduced graphite oxide (rGO) is a layered structure in which a plurality of reduced graphene oxide (rGNO) And the CNT is formed by growing in a direction perpendicular to the surface of the reduced graphene oxide (rGNO).

The CNTs may be grown on one or both surfaces of the reduced graphene oxide (rGNO) having a plate-like shape. The growth direction of the CNTs grows in one direction of the surface to form a three-dimensional carbon nanostructure (rGO-CNT) Can be formed.

The reduced graphene oxide (rGNO) has a plate-like two-dimensional (2D) structure in which carbon oxides are formed into a hexagonal honeycomb shape. The non-platinum catalyst having a three-dimensional (3D) structure can be produced by growing the CNT on the surface of one or both surfaces of the reduced graphene oxide (rGNO) The specific surface area can be expressed.

Due to the morphological characteristics of the three-dimensional carbon nanostructure (rGO-CNT), the specific surface area of the catalyst is improved, and the space inside the catalyst is formed, thereby facilitating the supply of the reactant and the discharge of the product during the reaction occurring in the electrode . Also, the connection between the rGO layers through the grown CNTs can impart high electrical conductivity properties to the produced three-dimensional carbon nanostructure.

According to an embodiment, the CNT may be a first CNT, and may further include a second CNT formed by growing on the surface of the first CNT.

When the second CNT is formed, the specific surface area of the catalyst can be further increased.

According to another embodiment, the transition metal is selected from the group consisting of Co, Fe, Ti, V, Mn, Cu, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Hf, Ta, W, And Co and Fe may be preferable considering the catalytic activity.

According to another embodiment, the transition metal may be doped with 1.0-10.0 wt% based on the total weight of the platinum catalyst for the fuel cell.

If the doped amount of the transition metal is less than 1.0 wt%, the number of catalytic active sites is small and the catalytic performance is deteriorated. If the amount is more than 10.0 wt%, a byproduct which lowers the catalytic reaction may be formed, There may be a problem.

According to another embodiment, the nitrogen may be doped with 1.0-10.0 wt% based on the total weight of the platinum catalyst for the fuel cell.

If the weight of the doped nitrogen is less than 1.0 wt%, the number of catalytic active sites is small and the catalytic performance is deteriorated. If the amount is more than 10.0 wt%, the electrical conductivity of the prepared nanostructure is lowered, .

According to another embodiment, the non-platinum catalyst for fuel cells may be a nanoparticle powder having an average particle diameter of 100-1000 nm.

If the average particle size of the non-platinum catalyst for fuel cell is less than 100 nm, there is a problem that there are many defects for inducing catalyst side reactions on the surface. If the average particle diameter is more than 1000 nm, the interlayer attraction increases and low specific surface area is caused .

Another aspect of the present invention relates to a redox electrode for a fuel cell comprising the non-platinum catalyst.

During operation of the fuel cell, the oxygen reduction reaction occurs at the oxygen reduction electrode and H ₂ O is generated, so that the durability may deteriorate with time.

Since the non-platinum catalyst for fuel cell exhibits excellent oxygen reduction reaction characteristics, the oxygen reduction reaction of the oxygen reduction electrode can be promoted.

Another aspect of the present invention relates to a fuel cell comprising the non-platinum catalyst as described above.

Another aspect of the invention relates to an apparatus comprising the non-platinum catalyst. Examples of such a device include, but are not limited to, a fuel cell vehicle, and the like. The present invention is applicable to a vehicle, a forklift, a bus, a scooter, a domestic fuel cell, and a portable fuel cell to which a fuel cell can be applied.

Another aspect of the present invention is a catalyst composition comprising (A) a reduced graphite oxide; Transition metal precursors; Nitrogen-containing organic compounds; And a solvent to prepare a mixed solution;

(B) irradiating the mixed solution with a microwave; And

(C) heat treating the catalyst in an inert atmosphere.

In the step (A), the mixed solution may be prepared by mixing the reduced graphite oxide (rGO), the transition metal precursor, the nitrogen-containing organic compound, and the solvent.

According to one embodiment, the weight ratio of the reduced graphite oxide (rGO), the transition metal precursor, the nitrogen containing organic compound, and the solvent may be 1: 0.01-0.10: 0.01-0.10: 10-100.

The reduced graphite oxide (rGO) may serve as a carbon source for forming CNTs, and may have a swellable property by microwave irradiation in the step (B). When the microwave is irradiated to the reduced graphite oxide (rGO) having a layered structure in which a plurality of graphenes are stacked, the distance between the plurality of graphenes is distanced so that the reduced graphite oxide (rGO) is expanded.

According to another embodiment, the transition metal precursor is selected from the group consisting of Co, Fe, Ti, V, Mn, Cu, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Hf, Ta, W, ≪ / RTI >

The transition metal precursor can be decomposed into nanoparticles by microwave irradiation, and can act as a catalyst promoting CNT growth.

If the weight ratio of the transition metal precursor to the reduced graphite oxide (rGO) is less than 0.01, CNT growth can not be smoothly performed. If the weight ratio of the transition metal precursor to the reduced graphite oxide (rGO) is more than 0.1, CNT is excessively grown, The specific surface area can be reduced.

According to another embodiment, the nitrogen-containing organic compound may be at least one selected from the group consisting of azodicarbonamide (ADC), biurea, semicarbazide and urethane, Nitrogen-containing organic compounds which can be decomposed into carbon dioxide (CO ₂ ) gas, nitrogen (N ₂ ) gas and urea, glycine, melamine and dicyanamide CO (NH ₂ ) ₂ by wave irradiation can be widely used.

For example, the organic compound containing the nitrogen-azo dicarbonate amide (Azodicarbonamide, ADC) elements (CO (NH ₂₎ carbon dioxide (CO ₂₎ gas, nitrogen (N ₂₎ gas and by-products by microwave irradiation if the _two ).

The CO ₂ gas may act to expand the volume of the reduced graphite oxide (rGO) by entering into the interstices of the plurality of graphenes and increasing the interlayer distance of the graphene.

The N ₂ gas may form a bamboo-shaped CNT structure.

The by-product element (CO (NH ₂ ) ₂ ) may react with an oxygen moiety such as a carboxyl group, a hydroxyl group, or a carbonyl group on the graphene surface to form aminated graphene. The aminated graphene can be a good attachment point at which the transition metal can be doped.

If the weight ratio of the nitrogen-containing organic compound to the reduced graphite oxide (rGO) is less than 10, the volume expansion of the reduced graphite oxide (rGO) may not be achieved and CNT growth may not be achieved. There is a problem that the catalyst is left in the structure and the catalytic activity is lowered.

According to another embodiment, the solvent may be one or more selected from the group consisting of acetonitrile (ACN), ethanol, isopropyl alcohol (IPA) and acetone.

As the solvent, a solvent capable of decomposing into carbonaceous gas and nitrogen (N ₂ ) gas by microwave irradiation should be used, and the reduced graphite oxide (rGO), transition metal precursor, nitrogen containing organic compound So that the CNTs can be uniformly grown without aggregation.

The carbonaceous gas forms transition metal nanoparticles surrounded by carbon so that the transition metal nanoparticles can serve as catalysts for CNT growth.

The N ₂ gas can form a bamboo-shaped CNT structure.

If the weight ratio of the solvent to the reduced graphite oxide (rGO) is less than 10, there is a problem in dispersibility and the CNT growth may not be achieved as desired. If the weight ratio is more than 100, the yield of the structure and the commerciality there is a problem.

In the step (B), a non-platinum catalyst for a fuel cell can be prepared by irradiating microwave to the mixed solution.

When microwave irradiation is applied to the mixed solution, the CO ₂ gas decomposed from the nitrogen-containing organic compound enters between the layers of a plurality of reduced graphene oxides (rGNO) to reduce the interlayer distance of the plurality of reduced graphene oxides (rGNO) To expand the volume of the reduced graphite oxide (rGO).

(CO (NH ₂ ) ₂ ) which is a by-product decomposed from the nitrogen-containing organic compound reacts with an oxygen moiety such as a carboxyl group, a hydroxyl group and a carbonyl group on the surface of the reduced graphene oxide (rGNO) To form aminated graphene.

The aminated graphene is doped with transition metal nanoparticles, and the transition metal nanoparticles are formed from the transition metal precursor by microwave irradiation.

The CNTs grow on the surfaces of the aminated graphenes in a direction perpendicular to the surface, and the transition metal nanoparticles serve as catalysts for CNT growth. The nitrogen-containing organic compounds and nitrogen decomposed from the solvent N ₂ ) gas to form bamboo-shaped CNT structures.

In the step (B), a microwave of 100-2000 W may be irradiated for 1-1000 seconds.

If the microwave is less than 100 W, CNT growth may be inhibited. If the microwave is more than 2000 W, the distribution of grown CNTs may grow unevenly, which may be a problem in catalyst performance or formation of a three-dimensional structure.

If the microwave irradiation time is less than 1 second, CNT growth may be inhibited. If the microwave irradiation time is more than 1000 seconds, the CNT may be excessively grown to increase the size of the catalyst, thereby reducing the specific surface area of the catalyst.

According to another embodiment, the step (B) may be repeated two or more times.

As described above, CNTs (first CNTs) can grow on the surface of the graphite oxide (rGO) reduced by microwave irradiation. Further, when microwave irradiation is performed, The second CNT can grow.

In the step (C), the three-dimensional carbon nanostructure doped with the transition metal and nitrogen obtained in the step (B) may be heat-treated in an inert atmosphere.

The inert atmosphere may be formed by at least one inert gas selected from argon, helium, neon, xenon, and nitrogen.

The heat treatment may be performed at a temperature of 500-1100 ° C for 1-20 hours to remove the remaining organic substances after the reaction and to stabilize the prepared catalyst.

If the heat treatment temperature is less than 500 ° C, the residual organic matters may not be removed completely and the stability of the prepared catalyst may be deteriorated. If the temperature is higher than 1100 ° C, the heat treatment temperature may be excessively lowered to lower the activity of the catalyst.

If the heat treatment time is less than 1 hour, the remaining organic substances are not completely removed and the stability of the prepared catalyst may be deteriorated. If the heat treatment time is more than 20 hours, the heat treatment temperature may be excessively lowered and the activity of the catalyst may be lowered.

The non-platinum catalyst for fuel cell thus produced can have excellent electrical properties, that is, high conductivity and low contact resistance, and can have a high BET area. Therefore, it can be applied as an electrode catalyst of a polymer electrolyte fuel cell (PEMFC).

Example

Hereinafter, the present invention will be described in more detail with reference to Examples and the like, but the scope and content of the present invention can not be construed to be limited or limited by the following Examples. In addition, it is apparent that, based on the teachings of the present invention including the following examples, those skilled in the art can easily carry out the present invention in which experimental results are not specifically shown.

Example 1

1, a non-platinum catalyst for a fuel cell was prepared in the following manner.

(A) Preparation of mixed solution

A mixed solution of ACN solvent and a mixture of reduced graphite oxide (rGO) powder, cobaltocene powder as a cobalt precursor and ADC was obtained.

At this time, the weight ratio of the rGO, the cobaltocene powder, the ADC and the ACN was 1: 0.1: 0.5: 10.

(B) Microwave irradiation

The mixed solution was placed in a Microwave Synthesis System (Anton Paar-Synthos 3000) and irradiated with microwaves to obtain Co and N-doped three-dimensional carbon nanostructures.

(C) Heat treatment

The above-mentioned three-dimensional carbon nanostructure (rGO-CNT) doped with Co and N was heat-treated at 800 ° C for 2 hours under an argon atmosphere, then naturally cooled to room temperature, and finally the non-platinum catalyst particle (rGO-CNT) .

Comparative Example 1

(RGO-melamine) particles were prepared in the same manner as in Example 1 except that melamine was used instead of the reduced graphite oxide (rGO) powder in the preparation of the mixed solution in the step (A).

Comparative Example 2

(RGO-PS) particles were prepared in the same manner as in Example 1 except that PS (polystyrene) was used instead of the reduced graphite oxide (rGO) powder in the step (A).

Test Example 1: Analysis of structure and shape of catalyst particles

The structures and shapes of the catalysts prepared in Example 1 and Comparative Examples 1 and 2 were analyzed.

FIG. 2 is an SEM photograph of the catalyst prepared in Example 1, and FIG. 3 is a TEM photograph of the catalyst prepared in Example 1 and Comparative Examples 1 and 2, respectively.

2 and 3, the catalyst (rGO-CNT) prepared in Example 1 has a large number of CNTs extending in the shape of protrusions on the surface of the rGO of the planes. However, in the catalysts prepared in Comparative Examples 1 and 2, rGO -melamine and rGO-PS do not form CNTs. This demonstrates that the growth conditions of CNT are also affected by the surface structure and composition of the rGO used.

4 is a graph showing average diameters of carbon nanotubes included in the catalyst prepared in Example 1. FIG.

Referring to FIG. 4, it can be seen that the average diameter of carbon nanotubes in the catalyst (rGO-CNT) prepared in Example 1 is 27.5? 6.5 nm.

5 is a graph showing X-ray diffraction (XRD) analysis results showing the phase-crystallization of the catalyst prepared in Example 1. Fig.

Referring to FIG. 5, it can be seen that the CNT was well formed in the catalyst (rGO-CNT) prepared in Example 1, as the non-platinum catalyst (rGO-CNT) Able to know.

Test Example 2: Electrochemical experiment

The electrochemical experiment of the catalyst is usually performed in a rotating disk electrode (RDE) three electrode cell. A 0.1 M KOH solution was used as the electrolyte, and the solution temperature was maintained at 25 ° C. The counter electrode is a platinum plate electrode, and the reference electrode is a saturated calomel electrode (SCE). In the circulating current method, high purity argon (Ar) gas was purged at a flow rate of 400 cc / min for about 30 minutes to remove oxygen in the solution. An argon (Ar) gas atmosphere was maintained at the same flow rate until the end of the experiment . After the circulating current method, the oxygen (O ₂ ) gas was purged at a flow rate equal to the flow rate of the argon (Ar) gas for about 30 minutes to measure the oxygen reduction performance of the catalyst. After that, oxygen (O ₂ ) atmosphere was maintained at the same flow rate until the end of the experiment.

10 mg of rGO-CNT catalyst was dispersed by using ultrasonic waves in 1,000 μl of IPA (isopropyl alcohol) solution and 100 μl of Nafion solution (5 wt% solution) to prepare a catalyst ink. 30 ㎕ of the ink was transferred to a glass carbon rotary disc electrode (RDE, 5 mm in diameter) by a micropipette and dried.

2-1. Oxygen reduction reaction (ORR)

ORR experiments were performed at room temperature in an oxygen-saturated 0.1 M KOH solution. The RDE rotational speed is 1600 rpm and the voltage sweep rate is 5 mV / s.

6 is a graph showing the rotating disk current density versus ORR characteristics of the catalyst prepared in Example 1, Comparative Examples 1 and 2. FIG.

Referring to FIG. 6, it can be seen that the catalyst (rGO-CNT) prepared in Example 1 exhibits superior catalytic activity as compared with the catalyst prepared in Comparative Example 1 (rGO-mel) and 2 (rGO-PS).

2-2. Chronoamperometry test

Chronoamperometry tests for durability evaluation tests were performed at room temperature at 0.6 VRHE potential, 1600 rpm in O ₂ purged 0.1 M KOH solution.

FIG. 7 is a time versus current curve graph of a catalyst prepared in Example 1 and a commercial platinum catalyst using Chronoamperometry, which is a result of showing the durability of catalyst performance exhibited through a half cell in a basic atmosphere.

Referring to FIG. 7, the catalyst (rGO-CNT) prepared in Example 1 showed a current of 85.3% in comparison with the initial measurement, indicating that the commercial platinum catalyst (Pt / C) And the same level of durability. That is, the non-white metal catalyst (rGO-CNT) prepared in Example 1 exhibited excellent durability.

The catalyst simplifies the manufacturing process to reduce the manufacturing time and cost and provides a transition metal-doped three-dimensional graphene-carbon nanotube nanostructure which is advantageous for mass production. The catalyst also provides a manufacturing process for directly growing CNTs on the rGO surface.

Therefore, according to various embodiments of the present invention, by preparing an unshaven metal catalyst in the form of a powder having a transition metal-doped three-dimensional graphene-carbon nanotube nanostructure, the catalyst has excellent onset potential and half- Exhibit excellent ORR catalyst performance with half-wave potentials (E1 / 2) and high current density.

In addition, since the catalyst can be produced at a low cost and can be obtained in a large amount, it can replace the existing platinum catalyst and exhibit a remarkable increase in price competitiveness.

It will be apparent to those skilled in the art that the present invention is not limited to the embodiments described above and that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. As shown in FIG.

It will be understood by those skilled in the art that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention as defined by the appended claims and their equivalents. .

Claims (17)

A non-platinum catalyst for a fuel cell, wherein a carbon-based support is doped with a transition metal and nitrogen,
The carbon-based support may include reduced graphite oxide (rGO); And CNT (Carbon Nano Tube). The carbon nanotubes have a three-dimensional structure,
The reduced graphite oxide (rGO) is a layered structure in which a plurality of reduced graphene oxide (rGNO) is laminated, and the CNT grows in a direction perpendicular to the surface of the reduced graphene oxide (rGNO) Platinum catalyst for fuel cells. The non-platinum catalyst for a fuel cell according to claim 1, wherein the CNT is a first CNT and further comprises a second CNT grown on the surface of the first CNT. The method of claim 1, wherein the transition metal is selected from the group consisting of Co, Fe, Ti, V, Mn, Cu, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Hf, Ta, W, Platinum catalyst for a fuel cell. The non-platinum catalyst for a fuel cell according to claim 1, wherein the transition metal is doped with 1.0-10.0 wt% based on the total weight of the non-platinum catalyst for the fuel cell. The non-platinum catalyst for a fuel cell according to claim 1, wherein the nitrogen is doped in an amount of 1.0-10.0 wt% based on the total weight of the non-platinum catalyst for the fuel cell. The non-platinum catalyst for a fuel cell according to claim 1, which is a nanoparticle having an average particle diameter of 100-1000 nm. A redox electrode for a fuel cell comprising the non-platinum catalyst according to any one of claims 1 to 6. A fuel cell comprising the non-platinum catalyst according to any one of claims 1 to 6. 8. An apparatus comprising a non-platinum catalyst according to any one of claims 1 to 6,
Wherein the device is selected from the group consisting of a transportation means, a domestic fuel cell and a portable fuel cell. (A) a reduced graphite oxide; Transition metal precursors; Nitrogen-containing organic compounds; And a solvent to prepare a mixed solution;
(B) irradiating the mixed solution with a microwave; And
(C) heat treating the catalyst in an inert atmosphere. 11. The method of claim 10, wherein the weight ratio of the reduced graphite oxide, the transition metal precursor, the nitrogen containing organic compound, and the solvent is 1: 0.01-0.10: 0.01-0.10: 10-100. Way. 11. The method of claim 10, wherein the transition metal precursor is at least one selected from chloride, oxide, hydroxide, nitrate, sulfate, acetate, acetylacetonate and formate salts of the transition metal. Way. The non-platinum catalyst for a fuel cell according to claim 10, wherein the nitrogen-containing organic compound is selected from azodicarbonamide (ADC), biurea, semicarbazide and urethane. Gt; The non-platinum catalyst for a fuel cell according to claim 11, wherein the solvent is at least one selected from the group consisting of acetonitrile (ACN), ethanol, isopropyl alcohol (IPA), and acetone. ≪ / RTI > The method of claim 10, wherein the microwave of 100-2000 W is irradiated for 1-1000 seconds in the step (B). The method for producing a platinum catalyst for a fuel cell according to claim 10, wherein the step (B) is repeated two or more times. 11. The method of claim 10, wherein the step (C) is a heat treatment at 500-1100 < 0 > C in an inert atmosphere.

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